Adding upstream version 0.3.upstream/0.3

Signed-off-by: Daniel Baumann <mail@daniel-baumann.ch>

1 files changed, 0 insertions, 115 deletions

diff --git a/main.cc b/main.cc
deleted file mode 100644
index bba5c6a..0000000
--- a/main.cc
+++ /dev/null
@@ -1,115 +0,0 @@
-/*  Lzd - Educational decompressor for lzip files
-    Copyright (C) 2013 Antonio Diaz Diaz.
-
-    This program is free software: you have unlimited permission
-    to copy, distribute and modify it.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-*/
-/*
-    Exit status: 0 for a normal exit, 1 for environmental problems
-    (file not found, invalid flags, I/O errors, etc), 2 to indicate a
-    corrupt or invalid input file.
-*/
-
-#include <algorithm>
-#include <cerrno>
-#include <cstdio>
-#include <cstdlib>
-#include <cstring>
-#include <stdint.h>
-#include <unistd.h>
-#if defined(__MSVCRT__) || defined(__OS2__)
-#include <fcntl.h>
-#include <io.h>
-#endif
-
-#include "decoder.cc"
-
-
-enum { min_dictionary_size = 1 << 12,
-       max_dictionary_size = 1 << 29 };
-
-typedef uint8_t File_header[6];	// 0-3 magic, 4 version, 5 coded_dict_size
-
-typedef uint8_t File_trailer[20];
-			//  0-3  CRC32 of the uncompressed data
-			//  4-11 size of the uncompressed data
-			// 12-19 member size including header and trailer
-
-
-int main( const int argc, const char * const argv[] )
-  {
-  if( argc > 1 )
-    {
-    std::printf( "Lzd %s - Educational decompressor for lzip files.\n",
-                 PROGVERSION );
-    std::printf( "Study the source to learn how a simple lzip decompressor works.\n"
-                 "It is not safe to use it for any real work.\n"
-                 "\nUsage: %s < file.lz > file\n", argv[0] );
-    std::printf( "Lzd decompresses from standard input to standard output.\n"
-                 "\nCopyright (C) 2013 Antonio Diaz Diaz.\n"
-                 "This is free software: you are free to change and redistribute it.\n"
-                 "There is NO WARRANTY, to the extent permitted by law.\n"
-                 "Report bugs to lzip-bug@nongnu.org\n"
-                 "Lzip home page: http://www.nongnu.org/lzip/lzip.html\n" );
-    return 0;
-    }
-
-#if defined(__MSVCRT__) || defined(__OS2__)
-  setmode( STDIN_FILENO, O_BINARY );
-  setmode( STDOUT_FILENO, O_BINARY );
-#endif
-
-  if( isatty( STDIN_FILENO ) )
-    {
-    std::fprintf( stderr, "I won't read compressed data from a terminal.\n"
-                          "Try '%s --help' for more information.\n", argv[0] );
-    return 1;
-    }
-
-  for( bool first_member = true; ; first_member = false )
-    {
-    File_header header;
-    for( int i = 0; i < 6; ++i )
-      header[i] = std::getc( stdin );
-    if( std::feof( stdin ) || std::memcmp( header, "LZIP", 4 ) != 0 )
-      {
-      if( first_member )
-        { std::fprintf( stderr, "Bad magic number (file not in lzip format)\n" );
-          return 2; }
-      break;
-      }
-    if( header[4] != 1 )
-      {
-      std::fprintf( stderr, "Version %d member format not supported.\n",
-                    header[4] );
-      return 2;
-      }
-    unsigned dict_size = 1 << ( header[5] & 0x1F );
-    dict_size -= ( dict_size / 16 ) * ( ( header[5] >> 5 ) & 7 );
-    if( dict_size < min_dictionary_size || dict_size > max_dictionary_size )
-      { std::fprintf( stderr, "Invalid dictionary size in member header\n" );
-        return 2; }
-
-    LZ_decoder decoder( dict_size );
-    if( !decoder.decode_member() )
-      { std::fprintf( stderr, "Data error\n" ); return 2; }
-
-    File_trailer trailer;
-    for( int i = 0; i < 20; ++i ) trailer[i] = std::getc( stdin );
-    unsigned crc = 0;
-    for( int i = 3; i >= 0; --i ) { crc <<= 8; crc += trailer[i]; }
-    unsigned long long data_size = 0;
-    for( int i = 11; i >= 4; --i ) { data_size <<= 8; data_size += trailer[i]; }
-    if( crc != decoder.crc() || data_size != decoder.data_position() )
-      { std::fprintf( stderr, "CRC error\n" ); return 2; }
-    }
-
-  if( std::fclose( stdout ) != 0 )
-    { std::fprintf( stderr, "Can't close stdout: %s\n", std::strerror( errno ) );
-      return 1; }
-  return 0;
-  }